Authenticated DNSSEC Bootstrapping in Knot DNS

When a domain owner decides to have their zone secured with DNSSEC, adding validation keys and signatures to the zone are only half the story. To allow resolvers to start validating signatures, it is also necessary to link at least one of the domain’s validation keys (DNSKEY records) to the global DNSSEC chain of trust.

Epic DNS Benchmarking

DNS is one of the critical services necessary for proper operation of the Internet. Also it is often a target of various cyber attacks. Considering this fact, operators of authoritative DNS servers require robust solutions offering enough performance for regular DNS traffic and resisting possible attacks against this service. That is the reason why we focus, besides other aspects, on the performance during development of our authoritative DNS server Knot DNS. Benchmarking is an inseparable part of the project and we have been exploring various ways of further performance growth. Recently we had a great opportunity to play with the epic 128-thread processor AMD EPYC 7702P. In this blog post I will share some results from its benchmarking.